Go South ( poker )

1) Remove chips surreptitiously from the table (so called because on a map that's the direction
they go), or pocket winnings while playing. Also called rat hole.

2) Palm or otherwise surreptitiously remove cards from the deck for
later introduction (by a thief) at an opportune moment.

3) Leave a game or card room with money obtained dishonestly.

4) Disappear. "I lent him $20 and he went south with it."